/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Control;

import Model.DAO;
import Model.User;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Nguyen Hung
 */
public class CommentServlet extends HttpServlet {
   

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        HttpSession session = (HttpSession) request.getSession();
        request.setCharacterEncoding("utf-8");
        User user = (User)session.getAttribute("user");
        String comment = request.getParameter("comment");
        String productCode = request.getParameter("productCode");
        
        String url = "";
        if(user != null){
            Connection connection = DAO.getConnection();
            String sql = "insert into comment values(null, ?, ?, ?)";
            try {
                PreparedStatement preparedStatement = connection.prepareStatement(sql);
                preparedStatement.setString(1, productCode);
                preparedStatement.setString(2, comment);
                preparedStatement.setString(3, user.getUsername());
                preparedStatement.execute();
            } catch (SQLException ex) {
                url="/error.jsp";
            }

            request.setAttribute("thanks", "Cảm ơn " + user.getUsername() + " đã bình luận sản phẩm");
            url = "/SeeMoreServlet?productCode=" + productCode;
        }else{
            url = "/login.jsp";
        }

        RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
        dispatcher.forward(request, response);
        
    }



    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
